8-K

                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  -------------

                                    FORM 8-K

                                 CURRENT REPORT
                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported): March 16, 2007


                             URANIUM RESOURCES, INC.
             (Exact name of registrant as specified in its charter)

        Delaware                        0-17171                   75-2212772
        --------                        -------                   ----------
(State or other jurisdiction     (Commission File Number)      (I.R.S. Employer
    of incorporation)                                        Identification No.)


        650 South Edmonds, Suite 108, Lewisville, TX             75067
          (Address of principal executive offices)              Zip Code


                                 (972) 219-3330
              (Registrant's telephone number, including area code)


          (Former name or former address, if changed since last report)


Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))



Item 8.01.      Other Events

        On March 16, 2007, the Registrant issued a press release announcing it
has increased its historic internal estimate of mineralized uranium material at
its West Largo project from 11.0 million pounds to 17.2 million pounds.

        A copy of the press release is attached hereto as Exhibit 99.1 and is
incorporated herein by reference.

Item 9.01.      Financial Statements and Exhibits

        Exhibit 99.1 Press Release dated March 16, 2007



                                   SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934,
the Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                        URANIUM RESOURCES, INC.


Date: March 16, 2007                  /s/ Thomas H. Ehrlich
                                      ------------------------------------------
                                      Thomas H. Ehrlich
                                      Vice President and Chief Financial Officer



Exhibit Index

Exhibit Number          Description
- --------------          -----------
Exhibit 99.1            Press Release dated March 16, 2007

EX-99.1

                                                                    Exhibit 99.1


         Uranium Resources, Inc. Increases New Mexico Assets

     West Largo historic estimate of mineralized uranium material
        increased to 17.2 million pounds U3O8 from 11.0 million


    DALLAS--(BUSINESS WIRE)--March 16, 2007--Uranium Resources, Inc.
(OTCBB: URRE) ("URI") announced today that it has increased its
historic internal estimate of mineralized uranium material at its West
Largo project from 11.0 million pounds to 17.2 million pounds U3O8 as
a result of the ongoing reevaluation of the Company's New Mexico
properties. The revision was based on the Company's decision to
consider development of the project by conventional mining and milling
methods in addition to in-situ recovery (ISR) methods. Previously, URI
only considered ISR mining for West Largo, the use of which could have
been limited by excessive depths on certain parts of the property.

    Dave Clark, President and Chief Operating Officer of URI,
commented, "We continue to uncover positive surprises with our
properties in New Mexico as we work our way through the extensive
database the Company acquired over the past 20 years."

    He added, "Together with the recently reported increase of uranium
at Roca Honda, the Company now has 32 million pounds between these two
projects that can be developed using underground mines and
conventional milling. We are currently developing a course of action
to aggressively develop these assets."

    West Largo

    The West Largo project consists of 3,800 acres of land comprising
sections 17, 19, 20, 21, 28, and 29 of T15N, R10W in McKinley County,
New Mexico. URI holds the mineral rights in fee or as unpatented
mining claims.

    Uranium was first discovered at West Largo in 1968 by Gulf
Minerals. Subsequent exploration by Gulf, Kerr-McGee, Pathfinder and
Santa Fe Mining delineated the current limits of the deposit. Uranium
mineralization is present in five sands within the Westwater Canyon
member of the Morrison Formation and is found at a depth of from 2,000
to 2,750 feet, with the difference being mostly due to surface
topography.

    Over 1,000 drill holes define the resource on this property. In
October of 1980, J.H. Jackson of Santa Fe completed an analysis of
West Largo reserves using the circle tangent method with a minimum
cutoff of 6 feet @0.10% U3O8 and a maximum area of influence for each
ore hole of a 50 foot radius or half the distance to the nearest
non-ore hole.

    In December of 1996, Douglas International was engaged to evaluate
certain properties obtained by URI from Santa Fe Minerals including
the West Largo deposit. Douglas determined the in-place reserves for
West Largo to be 11 million pounds U3O8. However, Douglas did not
include the Santa Fe reserve on Section 17 because URI planned to mine
the deposit by ISR methods only. The Douglas report stated,
"Mineralized zones on Section 17 occur at depths over 2,500 feet
because the mesa on Section 17 topographically adds to the depth of
the mineralized zones. Until the price of uranium rises significantly
above the price used herein ($16/lb U3O8) the Section 17
mineralization will not be economic using current ISR methods."

    Given significantly higher prices as well as the consideration of
using conventional mining methods, the Company now believes Section 17
should be included and, therefore, has increased its estimate of the
mineralized material for West Largo to 17.2 million pounds at an
average grade of 0.30% U3O8.

    ABOUT URANIUM RESOURCES, INC.

    Uranium Resources Inc. explores for, develops and mines uranium.
Since it's incorporation in 1977, URI has produced over 7 million
pounds of uranium by in-situ recovery (ISR) methods in the state of
Texas where the Company currently has ISR mining projects. URI also
has 183,000 acres of uranium mineral holdings in New Mexico that
includes the proposed ISR project at Churchrock. The Company acquired
these properties over the past 20 years along with an extensive
information database. URI's strategy is to capitalize on the strong
global market for uranium by fully exploiting its resource base in
Texas and New Mexico, acquiring new assets and through joint ventures
or partnerships.

    Safe Harbor Statement

    This press release contains forward-looking statements within the
meaning of the Private Securities Litigation Reform Act of 1995.
Forward-looking statements are subject to risks, uncertainties and
assumptions and are identified by words such as "expects,"
"estimates," "projects," "anticipates," "believes," "could," and other
similar words. All statements addressing operating performance,
events, or developments that the Company expects or anticipates will
occur in the future, including but not limited to statements relating
to the Company's reserves and mineralized uranium materials, timing of
receipt of mining permits, production capacity of mining operations
planned for properties in South Texas and New Mexico, planned dates
for commencement of production at such properties, revenue, cash
generation and profits are forward-looking statements. Because they
are forward-looking, they should be evaluated in light of important
risk factors and uncertainties. These risk factors and uncertainties
include, but are not limited to, the spot price of uranium, weather
conditions, operating conditions at the Company's mining projects,
government regulation of the mining industry and the nuclear power
industry, the world-wide supply and demand of uranium, availability of
capital, timely receipt of mining and other permits from regulatory
agents and other factors which are more fully described in the
Company's documents filed with the Securities and Exchange Commission.
Should one or more of these risks or uncertainties materialize, or
should any of the Company's underlying assumptions prove incorrect,
actual results may vary materially from those currently anticipated.
In addition, undue reliance should not be placed on the Company's
forward-looking statements. Except as required by law, the Company
disclaims any obligation to update or publicly announce any revisions
to any of the forward-looking statements contained in this press
release.

    CONTACT: Investor:
             Kei Advisors LLC
             Deborah K. Pawlowski/James M. Culligan
             716-843-3908/716-843-3874
             dpawlowski@keiadvisors.com
             jculligan@keiadvisors.com
             or
             Uranium Resources, Inc.
             David N. Clark
             President and COO
             361-883-3990
             or
             Media:
             DW Turner
             Kristin Jensen, 505-888-5877
             Email: kjensen@dwturner.com