H.R. No. 100 is a resolution recognizing March 4, 2025, as Montgomery County Day at the Texas State Capitol. The resolution highlights the rich history of Montgomery County, which was established in 1837 and is known for being the birthplace of the Texas flag. The county has experienced significant economic growth over the years, particularly due to the arrival of railroads, the lumber industry, and the discovery of oil. Today, Montgomery County is one of the fastest-growing counties in the nation, with a vibrant community that benefits from its proximity to Houston and various recreational amenities.

The event is organized by several local chambers of commerce, which aim to promote economic development and enhance the quality of life in the area. The resolution expresses pride in the county's heritage and acknowledges the contributions of its residents to Texas's history. It extends best wishes to the visiting delegation for a meaningful experience in Austin, celebrating the achievements and future aspirations of Montgomery County.